Ah, speaking as the person asking for those gut feels all the time (although I was never a dev, I was a tester and a PM), I have seen this disconnect so many times! I'm not asking for a commitment, I'm asking for what we now call "T-shirt sizes"... small, medium, large, extra large where small is a few days up to a couple of months for XL. On a global scale it's useful to get at least some idea of what you're looking at. Anyway, it's nice to see that someone else recognizes the difference... I sometimes call these WA-SWAGs. :-)